The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 1979
Filed:
Apr. 26, 1978
Applicant:
Inventors:
Robert P Bonazoli, Hamilton, MA (US);
Stephen F Kimball, III, Andover, MA (US);
Lewis H Palmer, III, Marblehead, MA (US);
Assignee:
GTE Sylvania Incorporated, Danvers, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01K / ; H01K / ; H01K / ;
U.S. Cl.
CPC ...
313222 ; 313115 ; 313272 ; 313316 ;
Abstract
A tungsten-halogen lamp for use in motor vehicle headlights comprises a tubular sealed glass capsule containing two coiled tungsten filaments, parallel to each other and disposed substantially orthogonally to the axis of the capsule. The two filaments are offset laterally from each other and one of the filaments is a coiled coil, in order to reduce the lateral traverse of both filaments.